Betel nut is the seed of an areca palm that grows in tropical parts of the Pacific, Asia and eastern Africa. It is said to have both stimulant and relaxation effects and is often used as a digestive aid or to sweeten breath.

It can be chewed alone, but is most commonly used as “betel quid” (a mixture of thinly sliced areca nut, tobacco, slaked lime, and spices or flavorings, wrapped in a leaf.) It is placed in between the tongue and cheek. When it has been thoroughly chewed, the user spits it out.